1520230536 has 96 divisors (see below), whose sum is σ = 4558788000. Its totient is φ = 453784320.

The previous prime is 1520230519. The next prime is 1520230541. The reversal of 1520230536 is 6350320251.

It is a super-2 number, since 2×1520230536² = 4622201765173694592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38740 + ... + 67388.

It is an arithmetic number, because the mean of its divisors is an integer number (47487375).

Almost surely, 2^1520230536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520230536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2279394000).

1520230536 is an abundant number, since it is smaller than the sum of its proper divisors (3038557464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520230536 is a wasteful number, since it uses less digits than its factorization.

1520230536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28739 (or 28732 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1520230536 is about 38990.1338289573. The cubic root of 1520230536 is about 1149.8375412600.

Adding to 1520230536 its reverse (6350320251), we get a palindrome (7870550787).

The spelling of 1520230536 in words is "one billion, five hundred twenty million, two hundred thirty thousand, five hundred thirty-six".